The QuickLogic Thing Plus EOS S3 is a small form factor system ideal for enabling the next generation of low-
power Machine Learning (ML) capable Internet of Things (IoT) devices. Unlike other development boards which
are based on proprietary hardware and software tools, the QuickLogic Things Plus is based on 100% open source
hardware, compatible with the Feather form factor, and is built around 100% open source software (including the
Symbiflow FPGA Tools).
The QuickLogic is powered by QuickLogic’s EOS™ S3, the first eFPGA-enabled Arm Cortex©-M4F MCU to be
fully supported with Zephyr RTOS and FreeRTOS.
Other functionality includes:
QuickLogic EOS S3 MCU Platform
ST micro LIS2DH12TR accelerometer
Vesper VM3011 Adaptive ZeroPower Listening™ Digital Piezoelectric MEMS PDM Microphone
SparkFun’s Qwiic connector to enable easy connection to large number of Qwiic modules
16Mbit of on-board flash memory
User button and RGB LED
Powered from USB or a single Li-Po battery
Integrated battery charger
USB data signals tied to programmable logic
IO signals routed into general purpose pinheads
Compatible with standard 0.1" breadboards
Benefits
QuickLogic Thing Plus EOS S3 is small, Feather compatible, inexpensive, and is 100% supported by open
source tools.
With a Cortex M4F MCU and integrated eFPGA, the EOS S3 lets you innovate with 100% open source
hardware and software.
Applications
Tiny ML applications (such as with SensiML’s AI Software Platform and Google’s TensorFlow Lite)
General purpose MCU applications
Board Layout
Below is a quick overview of the board layout and components.
QuickLogic EOS S3 MCU Platform
ST micro LIS2DH12TR accelerometer
SparkFun’s Qwiic connector
Vesper’s VM3011 MEMS PDM microphone
16Mbit of on-board flash memory
User button and RGB LED
Hardware Reset button
Powered from USB or a single Li-Po battery
Integrated battery charger
USB data signals tied to programmable logic
IO signals break-routed into general purpose pinheads
